Coniothyrium minitans Fungus for Moss Control Without Chemical Damage
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Solution Overview
Problem
Current methods for controlling moss growth, such as chemical herbicides, are ineffective and pose environmental and safety concerns, including damage to other plants, staining, corrosion, and pollution, necessitating the search for alternative and less harmful methods.
Innovation Solution
The use of Coniothyrium minitans fungus, specifically strain CON/M/91-08, which inhibits moss growth and causes existing moss to die, is employed as a biological control agent, either alone or in combination with herbicides, on various surfaces including turf and paved areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chemical herbicides are used to control moss growth, then moss control effectiveness is improved, but environmental pollution and damage to other plants increases
Solution Approach 1:
The patent introduces a biological intermediary (fungus Coniothyrium minitans or its metabolites) to mediate the control of moss growth. Instead of directly applying chemical herbicides that cause broad damage, the fungus acts as a selective biological agent that produces metabolites specifically effective against moss while sparing other plants, thus resolving the contradiction between effectiveness and environmental harm
Solution Approach 2:
The patent changes the fundamental parameter of the control agent from chemical synthetic substances to biological metabolites produced by Coniothyrium minitans. This parameter change transforms the mode of action from non-selective chemical toxicity to selective biological activity, achieving effective moss control while eliminating the harmful side effects of conventional herbicides
2Reliability
If chemical herbicides are used for moss control, then moss growth is suppressed, but safety regulations and handling complexity increase
Solution Approach 1:
The patent employs a biological agent (fungus or its metabolites) that can be applied in simpler formulations without the stringent safety infrastructure required for chemical herbicides. The biological agent can be handled, dosed, and stored with reduced regulatory complexity, making the system easier to operate while maintaining moss control effectiveness
3Reliability
If chemical herbicides are applied, then moss is controlled, but staining and corrosion of surfaces occur
Solution Approach 1:
The patent converts the harmful chemical substances into beneficial biological metabolites. The metabolites of Coniothyrium minitans achieve moss control through biological mechanisms that do not produce staining or corrosion effects, transforming the harmful chemical approach into a beneficial biological approach that eliminates surface damage while maintaining effectiveness
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Coniothyrium minitans effectively prevents moss growth with minimal environmental impact, as demonstrated by spore concentrations and application rates, showing efficacy up to 100% moss inhibition without adverse effects on other plants or the environment.
Implementation Method 1
The fungus Coniothyrium minitans was identified firstly in 1947 and can be found in soils worldwide. It attacks sclerotia (overwintering structures or survival structures) of Sclerotinia sclerotiorum and Sclerotinia minor, other Sclerotinia species and Sclerotium cepivorum and destroys them.
Implementation Method 2
In a further preferred embodiment, spores of Coniothyrium minitans are used. Spores formed by Coniothyrium minitans are conidia (asexually formed spores), which are formed in pycnidia and are also referred to as pycnidiospores or pycnospores.
Data Source
AI summary
The invention relates to the use of Coniothyrium minitans for controlling moss growth and to a method of controlling moss growth, comprising applying Coniothyrium minitans to an area to be kept free from mosses.